Operator’s manual (EPA)
335LS 335L
X-series
Please read the operator’s manual carefully and make sure you understand the instructions
before using the machine.
English
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CONTENTS
Contents
Note the following before starting:
KEY TO SYMBOLS
Please read the operator’s manual carefully.
Symbols .................................................................... 2
CONTENTS
INTRODUCTION
WHAT IS WHAT?
Maintenance, replacement, or repair of the emission control
devices and system may be performed by any nonroad
engine repair establishment or individual.
WARNING! Long-term exposure to noise
can result in permanent hearing
!
impairment. So always use approved
hearing protection.
What is what on the clearing saw? ............................ 5
GENERAL SAFETY PRECAUTIONS
ASSEMBLY
WARNING! Under no circumstances may
the design of the machine be modified
!
without the permission of the manufacturer.
Always use genuine accessories. Non-
authorized modifications and/or
accessories can result in serious personal
injury or the death of the operator or others.
FUEL HANDLING
Fuel ........................................................................... 12
Fueling ...................................................................... 13
STARTING AND STOPPING
WORKING TECHNIQUES
MAINTENANCE
Your warranty may not cover damage or
liability caused by the use of non-
authorized accessories or replacement
parts.
WARNING! A clearing saw, brushcutter or
trimmer can be dangerous if used
!
incorrectly or carelessly, and can cause
serious or fatal injury to the operator or
others. It is extremely important that you
read and understand the contents of this
operator’s manual.
Muffler ....................................................................... 19
TECHNICAL DATA
The Emissions Compliance Period referred to on the
emissions compliance label indicates the number of
operating hours for which the engine has shown to meet
Federal and Californian emission requirements.
FEDERAL AND CALIFORNIA EMISSIONS
CONTROL WARRANTY STATEMENT
The engine exhaust from this product
contains chemical known to the State
of California to cause cancer, birth
defects or other reproductive harm.
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INTRODUCTION
Dear customer!
Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when
the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production of muskets.
The location was logical, since water power was harnessed from the Huskvarna River to create the water-powered plant.
During over 300 years of continuous operation, the Husqvarna factory has produced a lot of different products, from wood
stoves to modern kitchen appliances, sewing machines, bicycles, motorcycles etc. In 1956, the first motor driven lawn mowers
appeared, followed by chain saws in 1959, and it is within this area Husqvarna is working today.
Today Husqvarna is one of the leading manufacturers in the world of forest and garden products, with quality as our highest
priority. We develop, manufacture and market high quality motor driven products for forestry and gardening as well as for
building and construction industry.
Your purchase gives you access to professional help with repairs and service whenever this may be necessary. If the retailer
who sells your machine is not one of our authorized dealers, ask for the address of your nearest servicing dealer.
It is our wish that you will be satisfied with your product and that it will be your companion for a long time. Think of this
operator′s manual as a valuable document. By following its′ content (using, service, maintenance etc) the life span and the
second-hand value of the machine can be extended.If you ever lend or sell this machine, make sure that the borrower or buyer
gets the operator′s manual, so they will also know how to properly maintain and use it.
Thank you for using a Husqvarna product.
Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and
appearance of products without prior notice.
4 – English
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WHAT IS WHAT?
20
What is what on the clearing saw?
1
2
3
4
5
6
7
8
9
Trimmer head
Grease filler cap, bevel gear
Bevel gear
Cutting attachment guard
Shaft
Handle adjustment
Loop handle
13 Cylinder cover
14 Starter handle
15 Fuel tank
16 Choke control
17 Air filter cover
18 Air purge
19 Operator’s manual
20 Harness
Suspension ring
Stop switch
21 Allen key
10 Throttle lockout
22 Drive disc
11 Throttle control
12 Spark plug cap and spark plug
23 Locking pin
24 Spark plug spanner
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GENERAL SAFETY PRECAUTIONS
Important
Personal protective equipment
IMPORTANT!
IMPORTANT!
The machine is only designed for trimming grass.
A clearing saw, brushcutter or trimmer can be dangerous if
used incorrectly or carelessly, and can cause serious or
fatal injury to the operator or others. It is extremely
important that you read and understand the contents of this
operator’s manual.
You must use approved personal protective equipment
whenever you use the machine. Personal protective
equipment cannot eliminate the risk of injury but it will
reduce the degree of injury if an accident does happen.
Ask your dealer for help in choosing the right equipment.
The only accessories you can operate with this engine unit
are the cutting attachments we recommend in the chapter
on Technical data.
Never use the machine if you are tired, if you have drunk
alcohol, or if you are taking medication that could affect
your vision, your judgement or your co-ordination.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
Never use a machine that has been modified in any way
from its original specification.
Never use a machine that is faulty. Carry out the checks,
maintenance and service instructions described in this
manual. Some maintenance and service measures must
be carried out by trained and qualified specialists. See
instructions under the heading Maintenance.
All covers, guards and handles must be fitted before
starting. Ensure that the spark plug cap and ignition lead
are undamaged to avoid the risk of electric shock.
WARNING! Listen out for warning signals
or shouts when you are wearing hearing
!
protection. Always remove your hearing
protection as soon as the engine stops.
HELMET
A protective helmet where there is a risk of falling objects
The machine operator must ensure that no people or
animals come closer than 15 metres while working. When
several operators are working in the same area the safety
distance should be at least twice the tree height and no
less than 15 metres.
HEARING PROTECTION
Wear hearing protection that provides adequate noise
reduction.
WARNING! The ignition system of this
machine produces an electromagnetic field
!
during operation.This field may under
some circumstances interfere with
pacemakers.To reduce the risk of serious
or fatal injury, we recommend persons with
pacemakers to consult their physician and
the pacemaker manufacturer before
operating this machine.
EYE PROTECTION
Always wear approved eye protection. If you use a visor then
you must also wear approved protective goggles. Approved
protective goggles must comply with standard ANSI Z87.1 in
the USA or EN 166 in EU countries.
WARNING! Running an engine in a confined
or badly ventilated area can result in death
!
due to asphyxiation or carbon monoxide
poisoning.
GLOVES
WARNING! Never allow children to use or
Gloves should be worn when necessary, e.g., when fitting
be in the vicinity of the machine. As the
!
cutting attachments.
machine is equipped with a spring-loaded
stop switch and can be started by low
speed and force on the starter handle, even
small children under some circumstances
can produce the force necessary to start
the machine.This can mean a risk of
serious personal injury.Therefore remove
the spark plug cap when the machine is not
under close supervision.
6 – English
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GENERAL SAFETY PRECAUTIONS
BOOTS
Wear sturdy, non-slip boots.
return springs. This arrangement means that the throttle
control is automatically locked at the idle setting.
A
B
CLOTHING
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
Wear clothes made of a strong fabric and avoid loose
clothing that can catch on twigs and branches. Always wear
heavy, long pants. Do not wear jewellery, shorts sandals or
go barefoot. Secure hair so it is above shoulder level.
FIRST AID KIT
Always have a first aid kit nearby.
Press the throttle lockout and make sure it returns to its
original position when you release it.
Machine′s safety equipment
This section describes the machine′s safety equipment, its
purpose, and how checks and maintenance should be
carried out to ensure that it operates correctly.See the ”What
is what?” section to locate where this equipment is
positioned on your machine.
IMPORTANT! All servicing and repair work on the machine
requires special training. This is especially true of the
machine′s safety equipment. If your machine fails any of
the checks described below you must contact your service
agent.When you buy any of our products we guarantee the
availability of professional repairs and service. If the
retailer who sells your machine is not a servicing dealer,
ask him for the address of your nearest service agent.
Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
WARNING! Never use a machine with faulty
safety equipment.The machine’s safety
!
See instructions under the heading Start. Start the machine
and apply full throttle.Release the throttle and check that the
cutting attachment stops and remains at a standstill. If the
cutting attachment rotates with the throttle in the idle position
then the carburettor idle setting must be checked. See
instructions under the heading Maintenance.
equipment must be checked and
maintained as described in this section. If
your machine fails any of these checks
contact your service agent to get it
repaired.
Throttle lockout
The throttle lockout is designed to prevent accidental
operation of the throttle control.When you press the lock (A)
(i.e. when you grasp the handle) it releases the throttle
control (B).When you release the handle the throttle control
and the throttle lockout both move back to their original
positions. This movement is controlled by two independent
English – 7
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GENERAL SAFETY PRECAUTIONS
Stop switch
Use the stop switch to switch off the engine.
Vibration damping system
Your machine is equipped with a vibration damping system
that is designed to reduce vibration and make operation
easier.
Start the engine and make sure the engine stops when you
move the stop switch to the stop setting.
Cutting attachment guard
Using incorrectly wound cord or a blunt or incorrect cutting
attachment (wrong type or incorrectly filed, see instructions
under the heading Filing the blade) increases the level of
vibration.
This guard is intended to prevent loose objects from being
thrown towards the operator. The guard also protects the
operator from accidental contact with the cutting attachment.
The machine′s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine′s handle unit.
Regularly check the vibration damping units for cracks or
deformation.
Check that the guard is undamaged and not cracked.
Replace the guard if it has been exposed to impact or is
cracked.
Check that the vibration damping element is undamaged
and securely attached.
Always use the recommended guard for the cutting
attachment you are using. See chapter on Technical data.
WARNING! Overexposure to vibration can
lead to circulatory damage or nerve
!
WARNING! Never use a cutting attachment
damage in people who have impaired
circulation. Contact your doctor if you
experience symptoms of overexposure to
vibration. Such symptoms include
numbness, loss of feeling, tingling,
pricking, pain, loss of strength, changes in
skin colour or condition.These symptoms
normally appear in the fingers, hands or
wrists.The risk increases at low
without an approved guard. See the chapter
!
on Technical data. If an incorrect or faulty
guard is fitted this can cause serious
personal injury.
temperatures.
8 – English
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GENERAL SAFETY PRECAUTIONS
Regularly check that the muffler is securely attached to the
Muffler
machine.
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user. A muffler
fitted with a catalytic converter is also designed to reduce
harmful exhaust gases.
If the muffler on your machine is fitted with a spark arrestor
screen this must be cleaned regularly. A blocked screen will
cause the engine to overheat and may lead to serious
damage.
In countries that have a warm and dry climate there is a
significant risk of fire. We therefore fit certain mufflers with a
spark arrestor screen. Check whether the muffler on your
machine is fitted with this kind of screen.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping.
This also applies at idle speed. Contact can
result in burns to the skin. Remember the
risk of fire!
WARNING!The inside of the muffler contain
chemicals that may be carcinogenic. Avoid
!
contact with these elements in the event of
a damaged muffler.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine.
WARNING! Bear in mind that:
!
The exhaust fumes from the engine are hot
Never use a machine that has a faulty muffler.
and may contain sparks which can start a
fire. Never start the machine indoors or
near combustible material!
!
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GENERAL SAFETY PRECAUTIONS
Trimmer head
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
IMPORTANT!
Always ensure the trimmer cord is wound tightly and evenly
around the drum, otherwise the machine will generate
harmful vibration.
•
•
•
Reduce the risk of blade thrust.
Obtain maximum cutting performance.
Extend the life of cutting equipment.
•
Only use the recommended trimmer heads and trimmer
cords. These have been tested by the manufacturer to
suit a particular engine size.This is especially important
when a fully automatic trimmer head is used. Only use
the recommended cutting attachment. See the chapter
on Technical data.
IMPORTANT!
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
Refer to the instructions for the cutting attachment to check
the correct way to load the cord and the correct cord
diameter.
WARNING! Always stop the engine before
doing any work on the cutting attachment.
!
This continues to rotate even after the
throttle has been released. Ensure that the
cutting attachment has stopped completely
and disconnect the HT lead from the spark
plug before you start to work on it.
•
•
Smaller machines generally require small trimmer heads
and vice versa. This is because when clearing using a
cord the engine must throw out the cord radially from the
trimmer head and overcome the resistance of the grass
being cleared.
The length of the cord is also important. A longer cord
requires greater engine power than a shorter cord of the
same diameter.
WARNING! A faulty cutting attachment may
increase the risk of accidents.
!
•
•
Make sure that the cutter on the trimmer guard is intact.
This is used to cut the cord to the correct length.
To increase the life of the cord it can be soaked in water
for a couple of days. This will make the line tougher so
that it lasts longer.
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ASSEMBLY
the locking pin in the groove on the screw head and
Fitting the loop handle
tighten. See diagram.
M
•
Clip the loop handle onto the shaft. Note that the loop
handle must be fitted between the arrows on the shaft.
C
L
A
•
•
Fit the drive disc (B) on the output shaft.
H
B
•
•
•
Slide the spacer into the slot in the loop handle.
Fit the nut, knob and screw. Do not overtighten.
Now adjust the trimmer to give a comfortable working
Turn the blade shaft until one of the holes in the drive disc
aligns with the corresponding hole in the gear housing.
position. Tighten the bolt/knob.
Assembling the cutting equipment
•
•
Insert the locking pin (C) in the hole to lock the shaft.
Screw on the trimmer head/plastic blades (H) in the
opposite direction to the direction of rotation.
•
To dismantle, follow the instructions in the reverse order.
WARNING!
!
When fitting the cutting attachment it is
extremely important that the raised section
on the drive disc/support flange engages
correctly in the centre hole of the cutting
!
attachment. If the cutting attachment is
fitted incorrectly it can result in serious
and/or fatal personal injury.
WARNING! Never use a cutting attachment
without an approved guard. See the chapter
!
on Technical data. If an incorrect or faulty
guard is fitted this can cause serious
personal injury.
•
Fit the trimmer guard/combination guard (A) intended for
use with the trimmer head/plastic blades.
Hang the trimmer guard/combination guard (A) on the
two hooks on the plate holder (M). Bend the guard
around the shaft and tighten it with the bolt (L) on the
opposite side of the shaft. Use the locking pin (C). Place
English – 11
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FUEL HANDLING
Gasoline
Fuel safety
Never start the machine:
1
If you have spilled fuel on it. Wipe off the spillage and
allow remaining fuel to evaporate.
CAUTION! Always use a quality gasoline/oil mixture with an
octane rating of at least 87 octane ((RON+MON)/2). If your
machine is equipped with a catalytic converter (see chapter
on Technical data) always use a good quality unleaded
gasoline/oil mixture. Leaded gasoline will destroy the
catalytic converter.
2
If you have spilled fuel on yourself or your clothes,
change your clothes. Wash any part of your body that
has come in contact with fuel. Use soap and water.
3
If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines.
Use low-emission gasoline, also known as alkylate gasoline,
Transport and storage
if it is available.
•
Store and transport the machine and fuel so that there is
no risk of any leakage or fumes coming into contact with
sparks or naked flames, for example, from electrical
machinery, electric motors, electrical relays/switches or
boilers.
•
•
When storing and transporting fuel always use approved
containers intended for this purpose.
When storing the machine for long periods the fuel tank
must be emptied. Contact your local gas station to find
out where to dispose of excess fuel.
This engine is certified to operate on unleaded gasoline.
•
The lowest recommended octane grade is 87
((RON+MON)/2). If you run the engine on a lower octane
grade than 87 so-called knocking can occur. This gives
rise to a high engine temperature and increased bearing
load, which can result in serious engine damage.
•
•
Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
The transport guard must always be fitted to the cutting
attachment when the machine is being transported or in
storage.
•
When working at continuous high revs a higher octane
rating is recommended.
•
In order to prevent unintentional starting of the engine,
the spark plug cap must always be removed during long-
term storage, if the machine is not under close
Two-stroke oil
•
For best results and performance use HUSQVARNA
two-stroke engine oil, which is specially formulated for
our air-cooled two stroke-engines.
supervision and when performing all service measures.
WARNING! Take care when handling fuel.
Bear in mind the risk of fire, explosion and
•
Never use two-stroke oil intended for water-cooled
engines, sometimes referred to as outboard oil (rated
TCW).
!
inhaling fumes.
•
•
Never use oil intended for four-stroke engines.
Mixing ratio
1:50 (2%) with HUSQVARNA two-stroke oil.
Fuel
CAUTION! The machine is equipped with a two-stroke
engine and must always been run using a mixture of
gasoline and two-stroke engine oil. It is important to
accurately measure the amount of oil to be mixed to ensure
that the correct mixture is obtained. When mixing small
amounts of fuel, even small inaccuracies can drastically
affect the ratio of the mixture.
Two-stroke oil, litre
Gasoline, litre
2% (1:50)
5
0,10
10
15
20
0,20
0,30
0,40
US fl. oz.
2 1/2
6 1/2
12 7/8
WARNING! Fuel and fuel fumes are highly
inflammable and can cause serious injury
!
when inhaled or allowed to come in contact
with the skin. For this reason observe
caution when handling fuel and make sure
there is adequate ventilation.
US gallon
1
2 1/2
5
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FUEL HANDLING
Fueling
Mixing
•
Always mix the gasoline and oil in a clean container
intended for fuel.
•
Always start by filling half the amount of the gasoline to
be used. Then add the entire amount of oil. Mix (shake)
the fuel mixture. Add the remaining amount of gasoline.
WARNING! Taking the following
precautions, will lessen the risk of fire:
!
•
Mix (shake) the fuel mixture thoroughly before filling the
machine’s fuel tank.
Do not smoke or place hot objects near
fuel.
Always shut off the engine before
refuelling.
Always stop the engine and let it cool for a
few minutes before refuelling.
When refuelling, open the fuel cap slowly
so that any excess pressure is released
gently.
Tighten the fuel cap carefully after
refuelling.
Always move the machine away from the
refuelling area before starting.
•
•
Do not mix more than one month’s supply of fuel at a
time.
•
•
Clean the area around the fuel cap. Contamination in the
tank can cause operating problems.
If the machine is not used for some time the fuel tank
should be emptied and cleaned.
Ensure that the fuel is well mixed by shaking the
container before filling the tank.
WARNING! The catalytic converter muffler
gets very hot during and after use.This also
!
applies during idling. Be aware of the fire
hazard, especially when working near
flammable substances and/or vapours.
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STARTING AND STOPPING
Check before starting
Starting and stopping
•
Check that the support flange is not cracked due to
fatigue or due to being tightened too much. Discard the
support flange if it is cracked.
WARNING! The complete clutch cover and
shaft must be fitted before the machine is
started, otherwise the clutch can come
loose and cause personal injury.
!
Always move the machine away from the
refuelling area before starting. Place the
machine on a flat surface. Ensure the
cutting attachment cannot come into
contact with any object.
•
•
Ensure the locking nut has not lost its captive force. The
nut lock should have a locking force of at least 1.5 Nm.
The tightening torque of the locking nut should be 35-50
Nm.
Make sure no unauthorised persons are in
the working area, otherwise there is a risk
of serious personal injury.The safety
distance is 15 metres.
Starting
Check that the trimmer head and trimmer guard are not
damaged or cracked. Replace the trimmer head or
trimmer guard if they have been exposed to impact or are
cracked.
Choke: Set the choke control in the choke position.
Primer bulb: Press the air purge repeatedly until fuel begins
•
•
Never use the machine without a guard nor with a
defective guard.
to fill the bulb. The bulb need not be completely filled.
All covers must be correctly fitted and undamaged before
you start the machine.
WARNING! When the engine is started with
the choke in either the choke or start
!
throttle positions the cutting attachment
will start to rotate immediately.
Hold the body of the machine on the ground using your left
hand (CAUTION! Not with your foot!). Grip the starter
handle, slowly pull out the cord with your right hand until you
feel some resistance (the starter pawls grip), now quickly
and powerfully pull the cord. Never wrap the starter cord
around your hand
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STARTING AND STOPPING
Repeat pulling the cord until the engine starts. When the
engine starts. return choke control to run position and apply
full throttle; the throttle will automatically disengage from the
start setting.
CAUTION! Do not pull the starter cord all the way out and
do not let go of the starter handle when the cord is fully
extended. This can damage the machine.
CAUTION! Do not put any part of your body in marked area.
Contact can result in burns to the skin, or electrical shock if
the spark plug cap has been damaged. Always use gloves.
Do not use a machine with damaged spark plug cap.
Stopping
Stop the engine by switching off the ignition.
CAUTION! The stop switch automatically returns to the start
position. In order to prevent unintentional starting, the spark
plug cap must be removed from the spark plug when
assembling, checking and/or performing maintenance.
English – 15
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WORKING TECHNIQUES
6
Always hold the machine with both hands. Hold the
General working instructions
machine on the right side of your body.
IMPORTANT!
This section takes up the basic safety precautions for
working with a trimmer.
If you encounter a situation where you are uncertain how
to proceed you should ask an expert. Contact your dealer
or your service workshop.
Avoid all usage which you consider to be beyond your
capability.
You must understand the difference between forestry
clearing, grass clearing and grass trimming before use.
Basic safety rules
7
8
9
Keep the cutting attachment below waist level.
The engine must be switched off before moving.
1
•
Look around you:
To ensure that people, animals or other things cannot
Never put the machine down with the engine running
affect your control of the machine.
unless you have it in clear sight.
•
To ensure that people, animals, etc., do not come into
contact with the cutting attachment or loose objects that
are thrown out by the cutting attachment.
WARNING! Neither the operator of the
machine nor anyone else may attempt to
•
CAUTION! Do not use the machine unless you are able
remove the cut material while the engine is
running or the cutting equipment is
to call for help in the event of an accident.
rotating, as this can result in serious injury.
2
Inspect the working area.Remove all loose objects, such
as stones, broken glass, nails, steel wire, string, etc. that
could be thrown out or become wrapped around the
cutting attachment.
Do not use the machine in bad weather, such as dense
fog, heavy rain, strong wind, intense cold, etc.Working in
bad weather is tiring and often brings added risks, such
as icy ground, unpredictable felling direction, etc.
Make sure you can move and stand safely. Check the
area around you for possible obstacles (roots, rocks,
branches, ditches, etc.) in case you have to move
suddenly. Take great care when working on sloping
ground.
Stop the engine and cutting equipment
before you remove material that has wound
around the blade shaft as otherwise there is
a risk of injury.The bevel gear can get hot
during use and may remain so for a while
afterwards.You could get burnt if you touch
it.
3
4
WARNING! Watch out for thrown objects.
Always wear approved eye protection.
Never lean over the cutting attachment
guard. Stones, rubbish, etc. can be thrown
up into the eyes causing blindness or
serious injury.
Keep unauthorised persons at a distance.
Children, animals, onlookers and helpers
should be kept outside the safety zone of
15 m. Stop the machine immediately if
anyone approaches. Never swing the
machine around without first checking
behind you to make sure no-one is within
the safety zone.
5
Keep a good balance and a firm foothold.
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WORKING TECHNIQUES
Cutting
Basic working techniques
Always slow the engine to idle speed after each working
operation. Long periods at full throttle without any load on
the engine can lead to serious engine damage.
•
The trimmer is ideal for cutting grass that is difficult to
reach using a normal lawn mower. Keep the cord parallel
to the ground when cutting. Avoid pressing the trimmer
head against the ground as this can ruin the lawn and
damage the tool.
WARNING! Sometimes branches or grass
get caught between the guard and cutting
!
attachment. Always stop the engine before
cleaning.
Grass trimming with a trimmer head
•
Do not allow the trimmer head to constantly come into
contact with the ground during normal cutting. Constant
contact of this type can cause damage and wear to the
trimmer head.
Trimming
Sweeping
•
•
Hold the trimmer head just above the ground at an angle.
It is the end of the cord that does the work. Let the cord
work at its own pace. Never press the cord into the area
to be cut.
The fan effect of the rotating cord can be used for quick
and easy clearing up.Hold the cord parallel to and above
the area to be swept and move the tool to and fro.
•
•
The cord can easily remove grass and weeds up against
walls, fences, trees and borders, however it can also
damage sensitive bark on trees and bushes, and
damage fence posts.
•
When cutting and sweeping you should use full throttle to
obtain the best results.
Reduce the risk of damaging plants by shortening the
cord to 10-12 cm and reducing the engine speed.
Clearing
•
The clearing technique removes all unwanted
vegetation.Keep the trimmer head just above the ground
and tilt it.Let the end of the cord strike the ground around
trees, posts, statues and the like. CAUTION! This
technique increases the wear on the cord.
•
•
The cord wears quicker and must be fed forward more
often when working against stones, brick, concrete,
metal fences, etc., than when coming into contact with
trees and wooden fences.
When trimming and clearing you should use less than full
throttle so that the cord lasts longer and to reduce the
wear on the trimmer head.
English – 17
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MAINTENANCE
finely adjusted. Fine adjustment should be carried out by
Carburetor
a skilled technician.
Your Husqvarna product has been designed and
manufactured to specifications that reduce harmful
emissions. After the engine has used 8-10 tanks of fuel the
engine will be run-in. To ensure that it continues to run at
peak performance and to minimise harmful exhaust
emissions after the running-in period, ask your dealer/
service workshop (who will have a rev counter at their
disposal) to adjust your carburettor.
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screwT should be turned
anti-clockwise until the cutting attachment stops.
Rec. idle speed: See the Technical data section.
Recommended max. speed: See the Technical data
section.
WARNING! If the idle speed cannot be
WARNING! The complete clutch cover and
adjusted so that the cutting attachment
!
shaft must be fitted before the machine is
stops, contact your dealer/service
!
started, otherwise the clutch can come
loose and cause personal injury.
workshop. Do not use the machine until it
has been correctly adjusted or repaired.
Function
Fine adjustment
•
When the machine has been ”run-in” the carburetor
should be finely adjusted. The fine adjustment should
be carried out by a qualified person. First adjust the L-
jet, then the idling screw T and then the H-jet.
•
The carburetor governs the engine’s speed via the
throttle control. Air and fuel are mixed in the carburetor.
The air/fuel mixture is adjustable. Correct adjustment is
essential to get the best performance from the machine.
Conditions
•
Before any adjustments are made, make sure that the air
filter is clean and the air filter cover is fitted. If you adjust
the carburettor when the air filter is dirty it will result in a
leaner mixture when the filter is finally cleaned.This can
lead to serious engine damage.
•
•
The setting of the carburetor means that the engine is
adapted to local conditions, for example, the climate,
altitude, fuel and the type of 2-stroke oil.
The carburetor has three adjustment controls:
L = Low speed jet
•
•
•
Carefully turn both jets, L and H, so that they are midway
between fully screwed in and fully screwed out.
H = High speed jet
T = Idle adjustment screw
Do not attempt to adjust the L and H jets beyond either
stop as this could cause damage.
Now start the machine according to the starting
instructions and let it warm up for 10 minutes.
L
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screw T should be
turned anti-clockwise until the cutting attachment stops.
H
Low speed jet L
T
Try to find the highest idling speed, turning the low speed
needle L clockwise respectively counter-clockwise. When
the highest speed has been found, turn the low speed
needle L 1/4 turn counter-clockwise.
•
•
The L and H-jets are used to adjust the supply of fuel to
match the rate that air is admitted, which is controlled
with the throttle.If they are screwed clockwise the air/fuel
ratio becomes leaner (less fuel) and if they are turned
anti-clockwise the ratio becomes richer (more fuel). A
lean mixture gives a higher engine speed and a rich
mixture gives a lower engine speed.
L
The T-screw regulates the throttle setting at idle speed. If
the T-screw is turned clockwise this gives a higher idle
speed; turning it anti-clockwise gives a lower idle speed.
Basic setting
•
The basic carburetor settings are adjusted during testing
at the factory.The basic setting is richer than the optimal
setting and should be maintained for the first few hours
the machine is in use. The carburettor should then be
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screwT should be turned
anti-clockwise until the cutting attachment stops.
18 – English
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MAINTENANCE
to run unevenly. Now turn the high speed jet H slowly
clockwise a little way until the engine runs smoothly.
Fine adjustment of the idle speed T
Adjust the idle speed using the idle adjustment screw T, if it
is necessary to readjust. First turn the idle adjustment screw
T clockwise until the cutting attachment starts to rotate.Then
turn the screw anticlockwise until the cutting attachment
stops. The idle speed is correctly adjusted when the engine
will run smoothly in every position. The idle speed should
also be well below the speed at which the cutting attachment
starts to rotate.
H
CAUTION! For optimum adjustment of the carburettor,
contact a qualified dealer/service workshop that has a
revolution counter at their disposal.
T
Correctly adjusted carburetor
When the carburetor is correctly adjusted the machine will
accelerate without hesitation and burble a little at maximum
speed. It is also important that the cutting attachment does
not rotate at idle. If the low speed jet L is set too lean it may
cause starting difficulties and poor acceleration.
WARNING! If the idle speed cannot be
If the high speed jet H is set too lean it will result in less
power, less performance, poor acceleration and/or damage
to the engine.
adjusted so that the cutting attachment
!
stops, contact your dealer/service
workshop. Do not use the machine until it
has been correctly adjusted or repaired.
If both the L and H jets are set too rich it will results in
acceleration problems or too low a working speed.
High speed jet H
Muffler
The high speed jet H affects the engine power, speed,
temperature and fuel consumption. If the high speed jet H is
set too lean (screwed in too far) the engine speed will be too
high and cause engine damage. Do not let the engine run at
full speed for more than 10 seconds.
CAUTION! Some mufflers are fitted with a catalytic
converter. See chapter on Technical data to see whether
your machine is fitted with a catalytic converter.
H
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
cause fire if directed against dry and combustible material.
Note that the engine should be loaded when you adjust the
high speed jet H.You should therefore fit the trimmer head
T35 (2.7 mm cord) before adjusting the high speed jet. The
cord length should be standard, i.e. to the knife on the
trimmer guard.
Apply full throttle and turn the high speed jet H very slowly
clockwise until the engine slows down. Then turn the high
speed jet H very slowly anticlockwise until the engine starts
Some mufflers are equipped with a special spark arrestor
screen. If your machine has this type of muffler, you should
clean the screen at least once a week.This is best done with
a wire brush. On mufflers without a catalytic converter the
screen should be cleaned weekly, or replaced if necessary.
On mufflers fitted with a catalytic converter the screen
should be checked, and if necessary cleaned, monthly.If the
screen is damaged it should be replaced. If the screen is
English – 19
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MAINTENANCE
frequently blocked, this can be a sign that the performance
Bevel gear
of the catalytic converter is impaired. Contact your dealer to
inspect the muffler. A blocked screen will cause the machine
to overheat and result in damage to the cylinder and piston.
The bevel gear is filled with the right quantity of grease at the
factory. However, before using the machine you should
check that the bevel gear is filled three-quarters full with
grease. Use HUSQVARNA special grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
CAUTION! Never use a machine with a defective muffler.
Air filter
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping.
This also applies at idle speed. Contact can
result in burns to the skin. Remember the
risk of fire!
The air filter must be regularly cleaned to remove dust and
dirt in order to avoid:
•
•
•
•
•
Carburettor malfunctions
Starting problems
Loss of engine power
Unnecessary wear to engine parts
Excessive fuel consumption.
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
3
2
Clean the filter every 25 hours, or more regularly if conditions
are exceptionally dusty.
1
The cooling system consists of:
1
2
3
Air intake on the starter.
Cooling fins on the cylinder.
Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
20 – English
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MAINTENANCE
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water. Ensure that the filter is dry
before refitting it.
Spark plug
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
If the machine is used in dusty conditions the air filter should
be soaked in oil. See instructions under the heading Oiling
the air filter.
The spark plug condition is influenced by:
•
•
Incorrect carburetor adjustment.
An incorrect fuel mixture (too much or incorrect type of
oil).
•
A dirty air filter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
Oiling the air filter
If the machine is low on power, difficult to start or runs poorly
at idle speed: always check the spark plug first before taking
any further action.If the spark plug is dirty, clean it and check
that the electrode gap is 0.020 inch (0.5 mm).The spark plug
should be replaced after about a month in operation or
earlier if necessary.
Always use special filter oil. Filter oil contains a solvent to
make it spread evenly through the filter.You should therefore
avoid skin contact.
Put the filter in a plastic bag and pour the filter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the filter inside the plastic bag and pour off
the excess before fitting the filter to the machine. Never use
common engine oil. This would drain through the filter quite
quickly and collect in the bottom.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Check that the spark plug is fitted with a suppressor.
Note: Use only HUSQVARNA replacement parts. Use of
other brands of replacement parts can cause damage to
your unit or injury to the operator or others.Your warranty
does not cover damage or liability caused by the use of
accessories and/or attachments not specifically
recommended by HUSQVARNA.
English – 21
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MAINTENANCE
Maintenance schedule
The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the
Maintenance section. The user must only carry out the maintenance and service work described in this manual. More
extensive work must be carried out by an authorised service workshop.
Daily
Weekly
Monthly
Maintenance
maintenance
maintenance
maintenance
Clean the outside of the machine.
X
Make sure the throttle trigger lock and the throttle function correctly
from a safety point of view.
X
Check that the stop switch works correctly.
Check that the cutting attachment does not rotate at idle.
Clean the air filter. Replace if necessary.
X
X
X
Check that the guard is undamaged and not cracked. Replace the
guard if it has been exposed to impact or is cracked.
Check that the trimmer head is undamaged and not cracked.
Replace the trimmer head if necessary.
Check that the locking nut of the cutting equipment is tighten
correctly.
X
X
X
Check that nuts and screws are tight.
Check that there are no fuel leaks from the engine, tank or fuel lines.
Check the starter and starter cord.
X
X
X
X
Check that the vibration damping elements are not damaged.
Clean the outside of the spark plug. Remove it and check the
electrode gap. Adjust the gap to 0.5 mm (.20”), or replace the spark
plug. Check that the spark plug is fitted with a suppressor.
X
Clean the machine’s cooling system.
Clean or replace the spark arrestor screen on the muffler (only
applies to mufflers without a catalytic converter).
Clean the outside of the carburettor and the space around it.
Check that the bevel gear is filled three-quarters full with lubricant.
Fill if necessary using special grease.
X
X
X
X
Check the fuel filter from contamination and the fuel hose from
cracks or other defects. Replace if necessary.
Check all cables and connections.
Check the clutch, clutch springs and the clutch drum for wear.
Replace if necessary by an autorized service workshop.
X
X
X
Replace the spark plug. Check that the spark plug is fitted with a
suppressor.
Check and clean the spark arrestor screen on the muffler (only
applies to mufflers fitted with a catalytic converter).
X
X
22 – English
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TECHNICAL DATA
Technical data
Technical data
335LS
335Lx
Engine
Cylinder displacement, cu.in/cm3
Cylinder bore, inch/mm
Stroke, inch/mm
2,11/34,6
1,50/38,0
1,20/30,5
2900
2,11/34,6
1,50/38,0
1,20/30,5
2900
Idle speed, rpm
Recommended max. fast idle speed, rpm
Speed of output shaft, rpm
11500
8220
11500
8220
Max. engine output, acc. to ISO 8893, kW/ rpm
Catalytic converter muffler
Speed-regulated ignition system
Ignition system
1,6/8400
Yes
Yes
1,6/8400
Yes
Yes
Manufacturer/type of ignition system
Spark plug
Electrode gap, inch/mm
Walbro MB
Champion RCJ 6Y
0,02/0,5
Walbro MB
Champion RCJ 6Y
0,02/0,5
Fuel and lubrication system
Manufacturer/type of carburetor
Fuel tank capacity, US pint/litre
Weight
Zama C1Q
1,27/0,6
Zama C1Q
1,27/0,6
Weight without fuel, cutting attachment and guard, Lbs/kg
Sound levels
12,6/5,7
13,0/5,9
(see note 1)
Equivalent sound pressure level at the user′s ear, measured
98/100
98/100
according to ANSI B175.3-2003, dB(A), min/max:
Vibration levels
Vibration levels at handles, measured according to
ANSI B175.3-2003, m/s2
At idle, left/right handles, min.:
At idle, left/right handles, max.:
At max. speed, left/right handles, min.:
At max. speed, left/right handles, max.:
2,4/1,7
2,4/1,7
3,8/4,2
5,3/5,7
2,4/1,7
2,4/1,7
3,8/4,2
5,3/5,7
Note 1: Equivalent noise pressure level is calculated as the time-weighted energy total for noise pressure levels under various
working conditions with the following time distribution: 1/2 idle and 1/2 max. speed.
NOTE! Noise pressure at the user’s ear and vibration on the handles are measured with all the machine’s approved cutting
equipment fitted. The table indicates the highest and lowest values.
Approved accessories
Centre hole in blades/cutters, Ø 25,4 mm
Output shaft thread M12
Plastic blades
Type
Cutting attachment guard, Art. no.
Tricut Ø 300 mm
T35, T35x
S35
T45x
503 89 01-02
537 33 16-03
537 33 16-03 / 537 34 94-03
537 33 16-03 / 537 34 94-03
537 33 16-03 / 537 34 94-03
-
Trimmer head
Support cup
J-handle set including grass blade Grass
255-4 1” (Ø 255 4-teeth)
-
537 33 16-03
English – 23
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FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY STATEMENT
WARRANTY COMMENCEMENT DATE
YOUR WARRANTY RIGHTS AND
The warranty period begins on the date the engine or
OBLIGATIONS
equipment is delivered to an ultimate purchaser.
The EPA (U.S. Environmental Protection Agency), CARB
LENGTH OF COVERAGE
(California Air Resources Board), Environment Canada and
Husqvarna Forest & Garden are pleased to explain the
emissions control system’s warranty on your 2009 and later
small off-road engine. In U.S. and Canada, new equipment
that use small off-road engines must be designed, built, and
equipped to meet the applicable Federal or Californian
stringent anti-smog standards. Husqvarna Forest & Garden
must warrant the emissions control system on your small off-
road engine for the period listed below provided there has
been no abuse, neglect or improper maintenance of your
equipment.Your emissions control system may include parts
such as the carburetor, ignition system, catalytic converter,
fuel tank, filters and other associated components. Also,
included may be hoses, belts, connectors, sensors, and
other emission-related assemblies. Where a warrantable
condition exists, Husqvarna Forest & Garden will repair your
small off-road engine at no cost to you including diagnosis,
parts and labor.
Husqvarna Forest & Garden warrants to the ultimate
purchaser and each subsequent owner that the engine or
equipment is designed, built, and equipped so as to conform
with all applicable regulations adopted by EPA and CARB,
and is free from defects in materials and workmanship that
causes the failure of a warranted part for a period of two
years.
WHAT IS COVERED
REPAIR OR REPLACEMENT OF PARTS Repair or
replacement of any warranted part under the warranty must
be performed at no charge to the owner at a warranty station.
Warranty services or repairs will be provided at all
Husqvarna Forest & Garden distribution centers that are
franchised to service the subject engines. Throughout the
emissions warranty period of two years, Husqvarna Forest &
Garden must maintain a supply of warranted parts sufficient
to meet the expected demand for such parts.
MANUFACTURER′S WARRANTY
COVERAGE
WARRANTY PERIOD Any warranted part that is scheduled
for replacement as required in the maintenance schedule, is
warranted for the period of time prior to the first scheduled
replacement point for that part. If the part fails prior to the
first scheduled replacement, the part will be repaired or
replaced by Husqvarna Forest & Garden at no cost. Any
such part repaired or replaced under warranty is warranted
for the remainder of the period prior to the first scheduled
replacement point for the part. Any warranted part that is not
scheduled for replacement as required in the maintenance
schedule, is warranted for two years. If any such part fails
during the period of warranty coverage, it will be repaired
and replaced by Husqvarna Forest & Garden at no cost. Any
such part repaired or replaced under the warranty is
warranted for the remaining warranty period. Any warranted
part that is scheduled only for regular inspection in the
maintenance schedule will be warranted for a period of two
years. A statement in such written instructions to the effect
of ”repair or replace as necessary” will not reduce the period
of warranty coverage. Any such part repaired or replaced
under warranty will be warranted for the remaining warranty
period.
The emissions control system is warranted for two years. If
any emissions-related part on your equipment is defective,
the part will be repaired or replaced by Husqvarna Forest &
Garden.
OWNER′S WARRANTY RESPONSIBILITIES
•
As the small off-road engine owner, you are responsible
for performance of the required maintenance listed in
your operator’s manual. Husqvarna Forest & Garden
recommends that you retain all receipts covering
maintenance on your small off-road engine, but
Husqvarna Forest & Garden cannot deny warranty solely
for the lack of receipts or your failure to ensure the
performance of all scheduled maintenance.
•
•
As the small off-road engine owner, you should however
be aware that Husqvarna Forest & Garden may deny you
warranty coverage if your small off-road engine or a part
has failed due to abuse, neglect, or improper
maintenance or unapproved modifications.
You are responsible for presenting your small off-road
engine to a Husqvarna Forest & Garden distribution
center or service center as soon as the problem exists.
The warranty repairs should be completed in a
reasonable amount of time, not to exceed 30 days. If you
have any questions regarding your warranty rights and
responsibilities, you should contact your nearest
authorized servicing dealer or call Husqvarna Forest &
Garden at 1-800-487-5951 or visit
DIAGNOSIS The owner must not be charged for diagnostic
labor that leads to the determination that a warranted part is
in fact defective, provided that such diagnostic work is
performed at a warranty station.
CONSEQUENTIAL DAMAGES Husqvarna Forest &
Garden is liable for damages to other engine components
proximately caused by a failure under warranty of any
warranted part.
24 – English
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FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY STATEMENT
EMISSION WARRANTY PARTS LIST
1
2
3
Carburetor and internal parts
Intake pipe, airfilter holder and carburetor bolts.
Airfilter and fuelfilter covered up to maintenance
schedule.
4
5
6
7
Spark Plug, covered up to maintenance schedule
Ignition Module
Muffler with catalytic converter
Fuel tank
WHAT IS NOT COVERED
All failures caused by abuse, neglect or improper
maintenance are not covered.
ADD -ON OR MODIFIED PARTS
Add-on or modified parts that are not exempted by CARB or
EPA may not be used.The use of any non-exempted add-on
or modified parts will be grounds for disallowing a warranty
claim. Husqvarna Forest & Garden will not be liable to
warrant failures of warranted parts caused by the use of a
non-exempted add-on or modified part.
HOW TO FILE A CLAIM
If you have any questions regarding your warranty rights and
responsibilities, you should contact your nearest authorized
servicing dealer or call Husqvarna Forest & Garden at 1-
WHERE TO GET WARRANTY SERVICE
Warranty services or repairs are provided through all
Husqvarna Forest & Garden authorized servicing dealers.
MAINTENANCE, REPLACEMENT AND
REPAIR OF EMISSION-RELATED PARTS
Any replacement part may be used in the performance of
any warranty maintenance or repairs and must be provided
without charge to the owner. Such use will not reduce the
warranty obligations of the manufacturer.
MAINTENANCE STATEMENT
The owner is responsible for the performance of all required
maintenance, as defined in the operator’s manual.
English – 25
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S35
1
2
3
8,5 m
28'
10 cm
4"
4,2 m
14'
4
6
5
7
8
"Clic"
10
11
15 cm
6"
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S35
1
2
4,25 m
14'
4,25 m
14'
4
3
5
15 cm
6"
B
A
15 cm
6"
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T35, T35x
1
2
3
8,5 m
28'
10 cm
4"
4,3 m
14'
4
6
5
7
8
"Clic"
15 cm
6"
9
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T45, T45x
1
2
3
10 m
32'
10 cm
4"
4,3 m
14'
4
6
5
7
8
15 cm
6"
"Clic"
9
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1151411-95
´®z+SI3¶5\¨
´®z+SI3¶5\¨
2008-12-22
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